Exercising-machine



syl-".PooLE. EXBRGISING MACHINE.

(No Modl.)

Patented'lVIaJy-l, 1894.

WITNESSES:

UNrTnD vSTATES i PATENT einen.

GEORGE F. POOLE, OF CLEVELAND, OHIO.

EXERCISING-MACHINE.

SPECIFICATION forming' part of Letters PatentiNo. 518,967, dated May 1,1894.

Application iiled May 2, 1893. Serial No. 472,754. (No model.)

To all whom t may concern:

Be it known that I, GEORGE F. POOLE, a subject of the Queen of GreatBritain, and a resident of Cleveland, county of Cuyahoga, and State ofOhio, have invented certain new and useful Improvements in ExercisingApparatus, of which the following is a specification, the principle ofthe inventionv being herein explained and the best mode in which I havecontemplated applying that principle, so as to distinguish it from otherinventions.

The annexed drawings and the following description set forth in detail,one mechanical form embodying the invention; such detail constructionbeing but one of various mechanical forms in which the principle of theinvention may be used.

In said annexed drawings-Figurel represents a side elevation of myimproved exercising apparatus; Fig. II, a horizontal section of thesame, on the line II-II, in Fig. I, and Fig. III, a vertical section ofthe apparatus, on the line III-III, in Fig. II.

A cylindrical casing, A, is formed from two parts, A and A2, having eacha semicylindrical ear, a, at the meeting face of the rear edge, throughwhich ears Apasses a screw, a', which holds the two parts together. Eachpart of the casing has furthermore two ears, a2, through which passscrews, a3, which serve as additional means for holding the two parts ofthe casing together. A shaft, B, is axially journaled in the casing and'nas a danged pulley, C, secured upon it at about its middle. A strap,D, has its inner end secured to the center of said pulley, and is woundupon the same, between the anges. The casing is formed with an openingwhich admits of the strap being freely unwound from or wound upon thepulley. rllhe free end of the strap has an eye, d, or other suitablemeans for attaching a handle to it. A flat helical spring, E, is securedat one end to the shaft and at the other end to the casing, and saidspring will be wound up when the strap is unwound, and will wind thestrap when it again unwinds. The pulley C has a flange, C', upon theside opposite to the spring, and this flange is formed upon its innersidewith wedgeshaped projections, c, and with projections, c', at thenarrow ends of the wedges, where cylindrical recesses will be formed. Asleeve, F, fits `upon the screw-threaded outerend of the sleeve, andbears against the center of the head or end of the cylindrical casing,so that the sleeve may be adjusted longitudinally upon the shaft bymeans ot' said nut. The nut is provided with an index, 71,'which maypoint to a graduated dial, A3, upon the head or end of the cylindricalcasing. A wheel, I', is j ournaled upon the sleeve inside of the casing,and has the friction brake disk bearing against the inner face. of itshub, while the outer edge of its rim may bear against an annularfriction brake lining or surface, 0.4, inside of the head of thecasing,said lining, as well as the brake disk being preferably formedfrom close grained wood or liber, and forming brake surfaces for thewheel. Rollers, J, are interposed between the rim of the wheel and theinner side of the flange of the pulley, said rollers resting in thecylindrical recesses in the flange, when the pulley and flange mayrevolve independent ol` the Wheel;

or being jammed between the wheel rim and the wedge-shaped projectionsupon the pulley flange, when the pulley and Wheel will revolve together.Thus, when the pulley is revolved in one direction, the wheel will becarried with it,which happens when the strap is drawn' out; and when thepulley is revolved in the opposite direction,when the strap is againwound,-the pulley revolves,

while the wheel remains stationary. The

ends of the cylindrical projection upon the casing,-formed by thesemicylindrical ears a upon the two parts which form said casing,- areformed with conical seats, a5, into which the conical ends of two pivotscrews, lo, may fit. Said screws are adj ustably secured in` ears, k',projecting from a dovetailed block, K, which fits in a correspondinglyshaped groove, Z,'-open at its upper end,-in aplat-e, L, which may bepermanently secured to a wall, post, oor, or other rigid support,wherever it is desired to support the apparatus.

When the apparatus is to be used, the dovetailed block is slid down intothe groove of the supporting block, and the casing is thus ICO supportedto swing laterally upon the pivot screws. lVhen the strap is drawn out,the spring is wound tight, and the clutch mech anism between the pulleyand the brake wheel I will engage said wheel to revolve with it. Whenthe strap is released, the spring will unwind and will wind the strapupon the pulley, which will revolve in the reverse direction withoutrevolving the brake wheel. The tension of the brake upon the brake wheelmay be adjusted by means of the finger nut H, and the degree of tensionmay be ascertained by the index upon said nut and the dial upon thecasing.

The elastic washer or spring of the brake device will render the brakefriction sufficiently yielding to admit of adjustment of the tension andlimited or retarded movement for the brake wheel. Vithout such washer orspring, the brake friction would he too positive or dead, and no properadjustment of the tension, nor movement of the brake wheel when thebrake was applied, could take place.

Other modes of applying the principle of my invention may be employedfor the mode herein explained. Change may therefore be made as regardsthe mechanism thus disclosed, provided the principles of constructionset forth respectively in the following claims are employed.

I therefore particularly point out and distinctly claim as myinvention- 1. In an exercising apparatus, the combination of a pulley, astrap secured to and adapted to be wound upon and unwound from saidpulley, means for revolving said pulley to wind the strap, a brakewheel, a clutch device between said pulley and brake wheel, and brakemechanism arranged to bear against the sides of said brake wheel,substantially as set forth.

2. In an exercising apparatus, the combination of a casing formed with abrake surface at the inside of one head, a pulley j ournaled in saidcasing, a strap secured to and adapted to be wound upon and unwound fromsaid pulley, means for revolving said pulley to wind the strap, a brakewheel, clutch mechanism between the pulley and brake wheel, and a brakebearing against one side of the hub of the brake wheel and provided withmeans for moving it toward and from said wheel and for moving the wheeltoward and from the brake surface in the casing, substantially as setforth.

3. In an exercising apparatus, the combination of a casing formed withan annular brake surface at the inside of one head, a pulley journaledin said casing, a strap secured to and adapted to be wound upon andunwound from said pulley, means for revolving said pulley to wind thestrap, a brake wheel, clutch mechanism between the pulley and brakewheel, a sleeve upon which said wheel is journaled and formed with ahead at its inner end, a brake disk upon said sleeve between the headand the hub of the brake wheel, and a finger nut upon the sleeve andbearing against the head of the casing, substantially as set forth.

4. In an exercising apparatus, the combination of a pulley having meansfor revolving it in opposite directions and formed with a fiange uponone face having wedges upon its inner side and projections at the narrowends of said wedges, a brake wheel having its rim within said wedges andprojections and opposed to the same, and rollers adapted to catchbetween said wedges and the periphery of the brake wheel,substantiallyas set forth.

5. In an exercising apparatus, the combination of a casing formed with abrake surface, a pulley in said casing, a strap secured to and adaptedto be wound upon and unwound from said pulley, means for revolving saidpulley to wind the strap, a brake wheel, having one, face bearingagainst the brake surface, a clutch device between said wheel and thepulley, and a yieldingly supported brake, bearing against the hub of thebrake wheel and provided with means for moving it toward and from saidhub, substantially as set forth. i

In testimony that I claim the foregoing to be my invention I havehereunto set my hand this 24th day of April, A. D. 1893.

GEORGE F. POOLE.

Witnesses:

WM. SEGHER, DAvID T. DAvIEs.

